Avanti works in a bookstore. She has four books and is going to place them in two stacks. The diagram above shows the books before they touch. Use the information in the diagram to answer the question.
How did the temperatures of the four books compare before they touched? How will the temperatures of the two top books compare after the books have been touching for a while, and why?
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Answer:
Before the chairs touch, the bottom chair is hotter than the top chair. Once the chairs are touching, the bottom chair will transfer kinetic energy to the molecules in the cooler top chair until both chairs reach the same temperature, which will be in between their starting temperatures.
Explanation:
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The four books will have different temperatures before touching acc to the diagram attached below:
- Top book 1 will have the least temperature.
- Top book 2 will have the little lesser temperature.
- Bottom Book 1 and 2 have the same high temperature.
After touching due to heat transfer the temperature changes as:
- Top book 1 will have little higher temperature than before
- Top book 2 will also be heated up due heat transfer.
- Bottom book 1 will have lower temperature than before and as compared to bottom book 2
- Bottom book 2 will have a slightly warmer but still will be less hot than before.
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